The No.1 low-hydrogen type electrode for both mild steel and 490 MPa high tensile strength steel suited for almost limitless applications. LB-52 was developed around 1958. L stands for low hydrogen, while B symbolizes a slag-shielding covered electro
The No.1 low-hydrogen type electrode for both mild steel and 490 MPa high tensile strength steel suited for almost limitless applications. LB-52 was developed around 1958. L stands for low hydrogen, while B symbolizes a slag-shielding covered electrode. 52 refers to the level of approximate tensile strength of the deposited metal when it was developed.